PostHog Rate Limits

Overview

PostHog rate limits apply to private API endpoints authenticated with a personal API key (phx_...). Public capture endpoints (/capture/, /batch/, /decide/) are not rate limited. Understanding which endpoints have limits is critical to avoiding 429 errors.

Prerequisites

• PostHog personal API key (phx_...) for admin endpoints
• Understanding of which endpoints you call and how often
• posthog-node or direct API usage

PostHog Rate Limit Tiers